4.1 Flashcards
Heat
Heat
form of energy that can be transferred through solids, liquids and gases
potential energy
energy that is stored inside a material (e.g. heating substance)
kinetic energy
energy of movement, particles lose kinetic energy when temp decreases
thermometer
contains liquid (alcohol or mercury) inside a glass tube
temperature
measure of average kinetic energy of its particles in substances
absolute zero
when particles barely move at all, mostly at -273 degrees
heat transfer
when heat flows from areas of higher temperature to areas of lower temperature, greater temp difference, the faster the flow heat
conduction
heat transfer by vibrating particles (e.g. heat from hotter cup flows into hands)
conductors
substances that transfer heat easily
insulators
poor conductors of heat and sometimes blocks heat transfer
convection
transfer of heat in liquid or gas due to less dense, warmer matter rises and denser, cooler matter falls
radiation
how the sun transfers heat energy, transmits heat as invisible waves that travel the speed of light
infrared radiation
heat energy transmitted this way, all objects emit (release) some infrared energy
sea breeze
cool air that flows from above a body of water
land breeze
cool air that flows from the cool land